CN100587555C - Liquid crystal display - Google Patents

Liquid crystal display Download PDF

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Publication number
CN100587555C
CN100587555C CN200610002965A CN200610002965A CN100587555C CN 100587555 C CN100587555 C CN 100587555C CN 200610002965 A CN200610002965 A CN 200610002965A CN 200610002965 A CN200610002965 A CN 200610002965A CN 100587555 C CN100587555 C CN 100587555C
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CN
China
Prior art keywords
pixel
liquid crystal
electrode
sub
crystal indicator
Prior art date
Application number
CN200610002965A
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Chinese (zh)
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CN1811535A (en
Inventor
刘永勋
李喜锡
孙宇成
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三星电子株式会社
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Priority to KR1020050007124A priority Critical patent/KR101133761B1/en
Priority to KR1020050007124 priority
Application filed by 三星电子株式会社 filed Critical 三星电子株式会社
Publication of CN1811535A publication Critical patent/CN1811535A/en
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Publication of CN100587555C publication Critical patent/CN100587555C/en

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    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1343Electrodes
    • G02F1/134309Electrodes characterised by their geometrical arrangement
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/129Polyhedrons, tetrapods or similar bodies, whether or not threaded on strings
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/13624Active matrix addressed cells having more than one switching element per pixel
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/14Preformed blocks or slabs for forming essentially continuous surfaces; Arrangements thereof
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    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1343Electrodes
    • G02F1/13439Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • GPHYSICS
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    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136286Wiring, e.g. gate line, drain line
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/1368Active matrix addressed cells in which the switching element is a three-electrode device
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3614Control of polarity reversal in general
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating, or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1343Electrodes
    • G02F1/134309Electrodes characterised by their geometrical arrangement
    • G02F2001/134345Subdivided pixels, e.g. grey scale, redundancy
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/04Structural and physical details of display devices
    • G09G2300/0439Pixel structures
    • G09G2300/0443Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
    • G09G2300/0447Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations for multi-domain technique to improve the viewing angle in a liquid crystal display, such as multi-vertical alignment [MVA]
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3685Details of drivers for data electrodes
    • G09G3/3688Details of drivers for data electrodes suitable for active matrices only

Abstract

A liquid crystal display apparatus includes a plurality of pixels having first and second subpixels, a plurality of gate lines connected to the first and second subpixels to transmit gate signals, a plurality of first data lines intersecting the gate lines and connected to the first subpixels to transmit first data voltages, and a plurality of second data lines intersecting the gate lines and connected to the second subpixels to transmit second data voltages. The first and second data voltages have different sizes and are obtained from single image information. Each pixel is divided into a pair of subpixels, and different data voltages are applied to the subpixels through two different data lines, so that it is possible to secure a wide viewing angle and improve side visibility.

Description

LCD

Based on 35 U.S.C. § 119, the application requires the right of priority of the korean patent application submitted on January 26th, 2005 10-2005-0007124 number, and its full content is hereby expressly incorporated by reference.

Technical field

The present invention relates to thin film transistor (TFT) (" TFT ") panel and liquid crystal display (" LCD ") device.More particularly, the present invention relates under the undiminished situation of transmissivity, can improve the TFT panel and the LCD device of side visibility.

Background technology

Liquid crystal indicator is one of the most widely used panel display apparatus, and it comprises having two panels (for example, pixel electrode and common electrode) and the intervenient liquid crystal layer that the utmost point is sent a telegraph in the field.Send a telegraph the utmost point in liquid crystal layer, to produce electric field and the arrangement by determining the liquid crystal molecule in the liquid crystal layer by voltage being applied show up with control polarization of incident light, LCD device display image.In liquid crystal indicator, by voltage being applied to two electrodes, to produce electric field in liquid crystal layer, the optical transmission rate by the intensity of regulating electric field is passed liquid crystal layer with adjusting obtains desired images.At this moment, owing to for a long time electric field is applied to the degradation phenomena that liquid crystal layer causes along a direction, data voltage reverses with frame, row or pixel cell with respect to the polarity that common-battery is pressed in order to prevent.

In the middle of these liquid crystal indicators, in having the liquid crystal indicator of vertical alignment, when not producing electric field, liquid crystal molecule is with the main shaft and the upper panel state arrangement vertical with lower panel of liquid crystal molecule.Because this liquid crystal indicator has high contrast and wide benchmark visual angle can be provided at an easy rate, so receive an acclaim.Here, the benchmark visual angle refers to the effective angle in visual angle with 1: 10 contrast or the counter-rotating of the brightness between the gray level.

The method that is included in the wide visual angle in the liquid crystal indicator with vertical alignment comprises an extremely middle method and the upward protruding method of formation of field of sending a telegraph on the scene that forms opening of sending a telegraph on the scene.Owing to can determine the direction of liquid crystal molecules tilt by using opening and projection, so by differently arrange openings and projection can be widened the benchmark visual angle so that the vergence direction of liquid crystal molecule distributes along different directions.

Yet the liquid crystal indicator with vertical arrangement has the side visibility that is lower than positive visuality.For example, under the situation of liquid crystal indicator with the image homeotropic alignment of opening (" PVA ", patternedvertically alignment) mode, when the side, image is brighter, and in some cases, the luminance difference between the high grade grey level can cause image blurring profile.

In order to address the above problem, a kind of being used for by a pixel is divided into two sub-pixels proposed, with the mode of electric capacity two sub-pixels that are coupled, and by voltage being applied directly to a sub-pixel, and, capacitive coupling provides the technology of different transmissivity owing to making voltage drop in other sub-pixel.

Yet, in above-mentioned technology, can not regulate the transmissivity of two sub-pixels exactly.

Especially, the optical transmission rate of different colours differs from one another.Yet, be difficult to obtain the different voltage combinations of different colours.And, be used for capacity coupled conducting element owing to must add, thus the aperture opening ratio deterioration, and because the voltage drop that capacitive coupling produced, so reduced transmissivity.

Summary of the invention

The invention provides the thin-film transistor display panel and the liquid crystal indicator that under the undiminished situation of transmissivity, can improve side visibility.

According to an exemplary embodiment of the present invention, provide a kind of liquid crystal indicator, it comprises: a plurality of pixels comprise first and second sub-pixel; Many gate lines are connected to first and second sub-pixel, signal is transferred to the first order second sub-pixel; Many first data lines intersect with gate line, and are connected to first sub-pixel, so that first data voltage is transferred to first sub-pixel; And many second data lines, intersect with gate line, and be connected to second sub-pixel, so that second data voltage is transferred to second sub-pixel, wherein, first data voltage has different sizes with second data voltage, and obtains from single image information.

In above-mentioned exemplary embodiments of the present invention, each first sub-pixel all can comprise first switchgear that is connected to the gate line and first data line and first pixel electrode that is connected to first switchgear, and each second sub-pixel comprises second switch device that is connected to the gate line and second data line and second pixel electrode that is connected to the second switch device.

In addition, at least one had opening in first and second pixel electrode.

In addition, first sub-pixel can further comprise the common electrode in the face of first and second sub-pixel.

In addition, common electrode can have opening or projection.

In addition, liquid crystal indicator can further comprise guarded electrode, at least a portion of this shielding electrode can be with first and second data line overlapping and can with the one the second data line electrical isolations.

In addition, the area of first pixel electrode is different from the area of second pixel electrode.

In addition, at least one in first and second data line can be between first and second pixel electrode.

In addition, the ratio of the lateral length of each pixel and longitudinal length can be substantially equal to 1: 3.

In addition, first and second sub-pixel is along lateral arrangement, and the lateral length of first sub-pixel is different with the lateral length of second sub-pixel.

In addition, liquid crystal indicator can further comprise first and second color filter of facing first and second pixel electrode respectively, and wherein, first and second color filter has identical color.

In addition, first data line and second data line can be positioned at the opposite side of each pixel.

In addition, first and second data voltage can have identical polarity.

In addition, the one the second data voltages can have opposite polarity.

In addition, the homonymy of contiguous each pixel of first data line and second data line.

In addition, first and second data voltage can have identical polarity.

In addition, liquid crystal indicator can further comprise the electric bridge line that is connected between second data line and the second switch device, and wherein, second data line is more farther from pixel than first data line.

In addition, the electric bridge line can comprise identical metal level with gate line, and the electric bridge line can be connected to a part and second switch device one end of second data line by comprising the conducting element of the metal level identical with first and second pixel electrode.

In addition, second data line can comprise first and the second portion that is separated from each other, and an end of first and second part of second data line can be overlapping with the first end of electric bridge line.

In addition, the second end of electric bridge line is overlapping by the source electrode of second switch device.

In addition, each pixel is essentially rectangle, and first and second sub-pixel is essentially non-rectangle.

In addition, first sub-pixel can have the shape in the shape that is nested in second pixel electrode, and the gap can separate first pixel electrode and second pixel electrode.

In addition, liquid crystal indicator can further comprise parallel with gate line basically storage electrode line, wherein, first pixel electrode is connected to first switchgear by first contact hole, first contact hole is positioned at the position of corresponding stored electrode wires, and second pixel electrode is connected to the second switch device by second contact hole, and second contact hole is between storage electrode line and gate line.

In addition, can the frequency drives liquid crystal indicator identical with the received image signal frequency of image information.

In addition, liquid crystal indicator can further comprise signal controller, is used for processing image information and produces first picture signal and second picture signal; And data driver, will be applied to first and second data line respectively corresponding to first and second data voltage of first and second picture signal.

In addition, liquid crystal indicator can comprise further that a plurality of pixels and the data line between every pair of neighborhood pixels are right.

Another exemplary embodiments according to the present invention provides a kind of liquid crystal indicator, and it comprises: gate line, extend along first direction; First and second data line extends along second direction, and separates each other; The first film transistor is connected to the gate line and first data line; Second thin film transistor (TFT) is connected to the gate line and second data line; And first and second show electrode, be connected respectively to first and second thin film transistor (TFT), wherein, the second direction length of second show electrode is greater than the first direction length of first show electrode, and first show electrode is positioned at the second direction length of second show electrode.

Of the present invention above-mentioned aspect, first and second show electrode has the inclined side that faces with each other.

In addition, first show electrode can have the shape in the shape that is nested in second show electrode.

In addition, at least one had opening in first and second show electrode.

In addition, liquid crystal indicator can further comprise the 3rd show electrode in the face of first and second show electrode.

In addition, the 3rd show electrode can have opening or projection.

In addition, each in first and second show electrode all has the shape of substantial symmetry with respect to the straight line that extends along first direction.

In addition, first data line and second data line can be positioned at the opposite side of second show electrode along its second direction.

In addition, first data line and second data line can be positioned at the homonymy of second show electrode along its second direction.

In addition, the area of first show electrode can be different from the area of second show electrode.

According to another exemplary embodiments of the present invention, a kind of liquid crystal indicator is provided, it comprises: a plurality of pixels, each pixel includes first and second sub-pixel; Many gate lines are connected to first and second sub-pixel, with the transmission signal; And many data lines, intersect with gate line, and be connected to first and second sub-pixel, with the transmission data voltage, wherein, the data voltage that is applied to first and second sub-pixel in each pixel has different values and identical polarity, and obtains from single image information.

According to an exemplary embodiments more of the present invention, a kind of liquid crystal indicator is provided, it comprises: a plurality of pixels, each pixel comprises first and second sub-pixel; Many gate lines are connected to first and second sub-pixel, with the transmission signal; And many data lines, intersect with gate line, and be connected to first and second sub-pixel, with the transmission data voltage, wherein, the data voltage that is applied to first and second sub-pixel has different values and opposite polarity, and obtains from single image information.

In any one of above-mentioned two exemplary embodiments of the present invention, be applied to the polarity of the data voltage of first and second sub-pixel can every pixel column or every pixel column reverse.

In addition, many data lines can comprise first and second data line that is connected respectively to first and second sub-pixel.

In addition, first and second data line of each pixel can be positioned at the opposite side of each pixel.Alternatively, first and second data line of each pixel can be positioned at the homonymy of each pixel.In another embodiment, one of first and second data line is between first and second sub-pixel of each pixel.

Description of drawings

Above-mentioned and other advantage of the present invention will be hereinafter detailed description of the preferred embodiment and more obvious in conjunction with the accompanying drawings, in the accompanying drawings:

Fig. 1 is the block diagram that illustrates according to first exemplary embodiments of liquid crystal indicator of the present invention;

Fig. 2 is the equivalent circuit figure that illustrates according to the exemplary pixels of first exemplary embodiments of liquid crystal indicator of the present invention;

Fig. 3 is the equivalent circuit diagram according to the typical sub-pixel of first exemplary embodiments of LCD device of the present invention;

Fig. 4 is the view that illustrates according to the layout of the typical TFT panel of first exemplary embodiments of LCD device of the present invention;

Fig. 5 is the view that illustrates according to the layout of the typical common electrode panel of first exemplary embodiments of the LCD of being used for device of the present invention;

Fig. 6 is the view of layout that first exemplary embodiments of the LCD device of being made up of the typical common electrode panel of the typical TFT panel of Fig. 4 and Fig. 5 is shown;

Fig. 7 A and Fig. 7 B are the sectional views that illustrates respectively along the LCD device of the VIIA-VIIA ' of Fig. 6 and the intercepting of VIIB-VIIB ' line;

Fig. 8 A and Fig. 8 B illustrate the polarization state according to the exemplary pixels electrode of first exemplary embodiments of LCD device of the present invention;

Fig. 9 is the block diagram that illustrates according to second exemplary embodiments of LCD device of the present invention;

Figure 10 is the view that illustrates according to the layout of the typical TFT panel of second exemplary embodiments of the LCD of being used for device of the present invention;

Figure 11 is the view of layout that the typical common electrode panel of second exemplary embodiments that is used for the LCD device according to the present invention is shown;

Figure 12 is the view of layout that second exemplary embodiments of the LCD device that the typical common electrode panel by the typical TFT panel of Figure 10 and Figure 11 constitutes is shown;

Figure 13 is the sectional view that illustrates along XIII-XIII ' the line intercepting of Figure 12;

Figure 14 illustrates the view according to the exemplary pixels polarization of electrode state of second exemplary embodiments of LCD device of the present invention;

Figure 15 is the block diagram according to the 3rd exemplary embodiments of LCD device of the present invention;

Figure 16 is the view according to the layout of the typical TFT panel of the 3rd exemplary embodiments of LCD device of the present invention;

Figure 17 is the view according to the layout of the typical common electrode panel of the 3rd exemplary embodiments of LCD device of the present invention;

Figure 18 is the view of layout that the 3rd exemplary embodiments of the LCD device that the typical common electrode panel by the typical TFT panel of Figure 16 and Figure 17 constitutes is shown;

Figure 19 is the sectional view that illustrates along the XIX-XIX ' line intercepting of Figure 18.

Embodiment

Hereinafter with reference to accompanying drawing to describing in detail according to a preferred embodiment of the invention.Yet the present invention can multiple different form realizes and is not limited to the embodiment that goes out shown here.In whole Figure of description, identical label is represented components identical.

In the accompanying drawing, for clarity sake, enlarged the thickness in layer and zone.In the whole accompanying drawing, identical label points to components identical.Be to be understood that when the element such as layer, zone and substrate " is positioned at " on another element, be meant that this element is located immediately on another element and has interference element betwixt.As applied at this, term " and/or " comprise the combination of any and all one or more relevant listed terms.

Although should be appreciated that and to use term at this first, second waits and describes different elements, parts, zone, layer and/or part that these elements, parts, zone, layer and/or part are not limited to these terms.These terms only are used for an element, parts, zone, layer or another zone of part, layer or part are distinguished mutually.Therefore, under the situation that does not deviate from aim of the present invention, first element hereinafter described, assembly, zone, layer or part can be called second element, assembly, zone, layer or part.

Term only is used to describe specific embodiment rather than restriction the present invention as used herein.As used herein, " one " of singulative, " this " also comprise plural form, unless there is other clearly to indicate in the literary composition.Should further understand, when in present specification, using term " to comprise " and/or when " comprising ", be meant feature, integer, step, operation, element and/or parts that existence is claimed, do not exist or additional one or more other feature, integer, step, operation, element, parts and/or its combination but do not get rid of also.

In addition, may use relational language such as " below " or " bottom " and " above " or " top " at this, with describe as shown in FIG. an element and the relation of another element.Should be appreciated that except that the orientation shown in the figure, relational language will comprise the different azimuth of device.For example, if the device in the accompanying drawing that overturns then is described as be in " top " face that element on other element " bottom " face will be positioned in other element.Therefore, above particular orientation with reference to the accompanying drawings, exemplary term " following " are included in and orientation below.Similarly, if the device in the accompanying drawing that overturns, then be described as be in other element " following " or " under " element will be positioned in other element " on ".Therefore, exemplary term " following " or " ... under " can be included in the top and below the orientation.

Unless special the qualification has the common explanation of understanding equivalent in meaning with those skilled in the art at all terms (comprising technology and scientific and technical terminology) that this adopted.And the further understanding of this term, for example, it is consistent with the meaning in the correlation technique context that the qualification meaning that usually adopts in the dictionary should be interpreted as, unless and limit especially at this, it should not be interpreted as desirable or too formal explanation.

At this, reference is described embodiments of the invention as the transversal synoptic diagram of the synoptic diagram of desirable embodiment of the present invention.Equally, can expect to cause the variation of synoptic diagram such as manufacturing technology and/or tolerance.Therefore, embodiments of the invention should not be understood that to be confined to the given shape shown in this, and comprise for example owing to the deviation of making the shape that causes.For example, be shown or be described as smooth zone, typically may have coarse and/or nonlinear characteristic.In addition, shown acute angle can be fillet.Therefore, the zone that illustrates in the drawings is actually schematically, and shape and be not used in the accurate shape of describing the zone, and is not used in the scope of the present invention that limits.

Following reference example shown in the drawings describes in detail according to a preferred embodiment of the invention.The embodiment that below describes with reference to the accompanying drawings only is used to explain the present invention.

In the accompanying drawing, for clarity sake, enlarged the thickness in layer and zone.

Describe in detail with reference to the accompanying drawings according to TFT panel of the present invention and LCD device.

Fig. 1 is the block diagram that illustrates according to first exemplary embodiments of LCD device of the present invention, Fig. 2 is the equivalent circuit diagram that illustrates according to the exemplary pixels of first exemplary embodiments of LCD device of the present invention, and Fig. 3 is the equivalent circuit diagram that illustrates according to the typical sub-pixel of first exemplary embodiments of LCD device of the present invention.

As shown in Figure 1, the LCD device comprises: LCD panel assembly 300, gate driving portion 400 and be connected to the data-driven portion 500 of LCD panel assembly 300, the signal controller 600 that is connected to the gray-scale voltage generator 800 of data-driven portion 500 and controls each parts.

Equivalent circuit diagram as shown in Figure 3, LCD panel assembly 300 comprises: as the lower panel 100 of TFT panel, as the upper panel 200 of common electrode panel, wherein, panel 100 and 200 is faced mutually, and liquid crystal layer 3 is between wherein.LCD panel 300 further comprises a plurality of pixel PX, and it is connected to a plurality of signal wire G 1To G nAnd D 1To D 2mAnd on lower panel 100, be arranged to matrix substantially.

Display signal line G 1-G n, D 1-D 2mComprise many gate lines G that are used to transmit signal (being also referred to as " sweep signal ") 1-G nWith many data line D that are used for transmission of data signals 1-D 2mGate lines G 1-G nSubstantially follow direction and extend, substantially parallel each other.Data line D 1-D 2mSubstantially extend along column direction, parallel to each other basically.Thereby data line D 1-D 2mBe basically perpendicular to gate lines G 1-G nExtend.As described below, data line D 1-D 2mWith gate lines G 1-G nInsulation.

Every data line D 1-D 2mAll be arranged on pixel PX one side.That is, all there is pair of data lines each pixel PX side, so that each pixel PX includes two data lines that are arranged on the opposite side, and two data lines are arranged between every couple of neighbor PX.Remove gate lines G 1-G nWith data line D 1-D 2mOutside, display signal line can comprise storage electrode line, below further describes, it is basically parallel to gate lines G in each pixel region 1-G nExtend.

As shown in Figure 2, each pixel PX includes a pair of sub-pixel PXa and PXb, and sub-pixel PXa and PXb comprise: be connected to corresponding gate lines G iWith data line G j, G J+1Switchgear Qa and Qb, and the liquid crystal capacitor C that is connected to switchgear respectively LCaAnd C LCbWith holding capacitor C STaAnd C STb

In optional embodiment, can omit holding capacitor C STaAnd C STb

As shown in Figure 2, this is connected to identical gate lines G to sub-pixel PXa and PXb iBut sub-pixel PXa also can be connected to different adjacent data line G with PXb j-G J+1Sub-pixel PXa is connected to the data line in first side of pixel PX, and sub-pixel PXb is connected to the data line on second side of pixel PX, and second side is relative with first side.

Be arranged on the lower panel 100 and be three port devices such as the TFT of switchgear Qa and Qb.Switchgear Qa and Qb are connected to gate lines G corresponding to the control and the input port of gate electrode and source electrode 1-G nWith data line D 1-D 2m, and its output port corresponding to drain electrode is connected to liquid crystal capacitor C LCaAnd C LCbWith holding capacitor C STaAnd C STb

As shown in Figure 3, the liquid crystal capacitor C of sub-pixel PXa LCaAnd C LCbPort in two be the pixel electrode 190a of lower panel 100 and the common electrode 270 of upper panel 200, and the liquid crystal layer 3 between two electrode 190a and 270 is as dielectric element.Pixel electrode 190a is connected to switchgear Qa, and such as the output port/drain electrode that is connected to switchgear Qa, and common electrode 270 is arranged on upper panel 200 fronts, presses V to receive common-battery ComThough not explanation, common electrode 270 can optionally be set to lower panel 100, and in this case, and at least one among two electrode 190a and 270 can form the proterties of line or rod.

By overlapping with the pixel electrode 190a and the separate signal line (not shown) that are set to lower panel 100 with intervenient insulating part, formation has the liquid crystal capacitor of being used for C LCaThe holding capacitor C of subsidiary function STa, and such as common-battery pressure V ComPredetermined voltage can be applied to the separate signal line.But alternatively, pixel electrode 190a and previous gate line only disposed thereon are overlapping to constitute holding capacitor C by making with intervenient insulating part STa

In order to realize colored demonstration, each pixel shows a kind of color (spatial division) independently, and perhaps each pixel optionally shows multiple color according to the time (time division).Desired color can obtain by the space or the time combination of multiple color, and three kinds of colors are red, green and blue.The example of the set of color comprises redness, green and blue, still should be understood that and can also adopt selectable color set.

Fig. 3 illustrates the example of spatial division.As shown in the figure, each pixel includes the color filter 230 that is used to represent a kind of color, and it is provided to a zone of upper panel 200.Each sub-pixel PXa and PXb all can comprise color filter.For example, first and second color filters 230 can be faced first and second pixel electrode 190a and the 190b, and first and second color filters 230 can have identical color.

Alternatively, color filter 230 can be arranged on the sub-pixel 190a of lower panel 100 or under.

The polarizer (not shown) that is used for polarized light is attached at least one of the outside surface of two panels 100 of LCD panel assembly 300 and 200.For example, first and second polarizing coatings can be regulated outside providing to the transmission direction of the light of lower panel 100 and upper panel 200 respectively according to the orientation (aligned direction) of liquid crystal layer 3.First and second polarizing coatings can have orthogonal substantially first and second polarization axles respectively.

Referring to Fig. 1, grey scale voltage generator 800 produces the two pair gray-scale voltages relevant with the transmissivity of sub-pixel PXa and PXb.The a pair of of two centerings pressed V with respect to common-battery ComHave on the occasion of, another is to pressing V with respect to common-battery ComHas negative value.

Gate drivers 400 is connected to the gate lines G of LCD panel assembly 300 1-G n, with grid voltage V OnThe signal in conjunction with forming offer gate lines G 1-G n

Data driver 500 is connected to the data line D of LCD panel assembly 300 1-D 2m, selecting gray-scale voltage from grey scale voltage generator 800, and selected gray-scale voltage offered sub-pixel PXa and PXb as data-signal about LCD brightness.Data driver 500 is used for data line D by the control of signal controller 600 with selection 1-D 2mGray-scale voltage offer respectively data line D as data-signal 1-D 2m

Gate drivers 400 and data driver 500 can directly be assemblied on the LCD panel assembly 300 with the form of a plurality of drive integrated circults (" IC ").Alternatively, gate drivers 400 and data driver 500 can be attached to the form that band carries encapsulation (" TCP ") on flexible print circuit (" FPC ") the film (not shown) in LCD panel assembly 300.Alternatively, gate drivers 400 and data driver 500 can directly be assemblied on the LCD panel assembly 300.

The operation of signal controller 600 control gate drivers 400, data driver 500 etc.

Now, will further describe the structure of LCD device with reference to figure 4 to Fig. 7 B.

Fig. 4 is the view according to the layout of the typical TFT panel of first exemplary embodiments of the LCD of being used for device of the present invention.Fig. 5 is the view according to the layout of the typical common electrode panel of first exemplary embodiments of the LCD of being used for device of the present invention, and Fig. 6 is the view of layout that first exemplary embodiments of the LCD device that the typical common electrode panel of the typical TFT panel of Fig. 4 and Fig. 5 constitutes is shown.Fig. 7 A and Fig. 7 B are the VIIA-VIIA ' of Fig. 6 along the line respectively and the sectional view of the LCD device that VIIB-VIIB ' line intercepts.

The LCD device comprises opposed facing TFT panel 100 and common electrode panel 200, and the liquid crystal layer 3 between two panels 100 and 200.

At first, will TFT panel 100 be described with reference to figure 4,6,7A and 7B.

A plurality of gate lines 121 and a plurality of storage electrode line 131 are arranged on by on the dielectric substrate of making such as clear glass of other transparent insulation material etc. 110.

Mainly be separated from each other such as the upwardly extending gate line 121 of first party longitudinally, and the transmission signal.The end 129 that each gate line 121 includes a plurality of projectioies that constitute a plurality of gate electrode 124a and 124b and has the wide zone that is used to be connected to other layer or outer projection.Gate electrode 124a and 124b can spatially separate, and the one, the first side setting of gate electrode 124a neighborhood pixels PX makes the second side setting of gate electrode 124b neighborhood pixels PX.But gate electrode 124a can be provided with in the mode different with described mode with 124b.

Storage electrode line 131 mainly extends upward, and comprises a plurality of projectioies that constitute storage electrode 133a and 133b in the first party such as the longitudinal direction that is basically parallel to gate line 121.

Storage electrode 133a is a rectangle, and with respect to storage electrode line 131 symmetries, and storage electrode 133b is in the extension in a lateral direction from the projection of storage electrode line 131, and has further the extension from its extension.In other words, storage electrode 133b is arranged between storage electrode line 131 and the gate line 121, has the extension that further extends towards gate line 121.

Such as being provided, the common-battery to the common electrode 270 of the common electrode panel 200 of LCD device presses V ComPredetermined voltage also be provided to storage electrode line 131.

Gate line 121 and storage electrode line 131 can be by the metals based on aluminium such as, but not limited to aluminium (Al) and aluminium alloy, such as the metal based on silver of silver (Ag) and silver alloy, make such as the metal based on copper of copper (Cu) and aldary, the metal based on molybdenum, chromium (Cr), titanium (Ti) or tantalum (Ta) such as molybdenum (Mo) and molybdenum alloy.

Alternatively, gate line 121 can have the sandwich construction that comprises two conductive layer (not shown) with different physical characteristicss with storage electrode line 131.In this case, one deck in two conductive layers will be made by the metal with low-resistivity, for example, based on the metal of aluminium, based on the metal of silver or based on the metal of copper, in order to reduce the signal delay or the voltage drop of electrode wires 121 and storage electrode line 131, and other conductive layer is made by having with the fine metal that contacts of other metal, particularly by making with the fine metal that contacts of indium zinc oxide (" IZO "), such as metal, chromium, titanium and tantalum based on molybdenum with tin indium oxide (" ITO ").

Preferred example as the combination of sandwich construction can comprise chromium layer, upper aluminum layer, lower aluminum layer and last molybdenum layer down.

But, specific example has been described, should be understood that gate line 121 and storage electrode line 131 can have multiple metal and conductive material to make.

In addition, the side of gate line 121 and storage electrode line 131 is with respect to the surface tilt of substrate 110, and the preferred angled angle is in about 30 ° to 80 ° scope.

The gate insulation layer of being made by silicon nitride SiNx etc. 140 is formed on gate line 121 and the storage electrode line 131, and can further be formed on not on the expose portion with by the overlapping substrate 110 of gate line 121 or storage electrode line 131.

The a plurality of linear semiconductor 151a and the 151b that are made by amorphous silicon hydride (" a-Si ") are formed on the gate insulation layer 140.Linear semiconductor 151a and 151b are mainly extending upward such as the horizontal second party that is basically perpendicular to first direction, and a plurality of protruding 154a and 154b are towards gate electrode 124a and 124b extension and overlapping with gate electrode 124a and 124b.

A plurality of linear and island shape Ohmic contact part 161a, 161b, 165a and the 165b (it is doped with n type impurity, such as phosphorus) that are made by silicide or n+ hydrogenation a-Si etc. are formed on linear semiconductor 151a and the 151b.Linear Ohmic contact part 161a and 161b have a plurality of protruding 163a and 163b respectively, and protruding 163a and 163b and island shape Ohmic contact part 165a and 165b constitute each to and be arranged on the protruding 154a and 154b of linear semiconductor 151a and 151b.In other words, protruding 163a and island shape Ohmic contact part 165a are arranged on the interval location of protruding 154a, and protruding 163b and island shape Ohmic contact part 165b are arranged on the interval location on the protruding 154b.

The side surface of semiconductor 151a and 151b and Ohmic contact part 161a, 161b, 163a, 163b, 165a and 165b be also with respect to the surface tilt of substrate 110, and the pitch angle about 30 ° to about 80 ° scope.

Divide a plurality of data line 171a of opening and 171b and a plurality of drain electrode 175a and 175b to be respectively formed on Ohmic contact part 161a, 161b, 165a and the 165b with a plurality of data line 171a and 171b.

Data line 171a and 171b mainly extend upward in the second party such as horizontal of basic and gate line 121 and storage electrode line 131 square crossings, and data voltage is provided.Data line 171a and 171b have multiple source electrode 173a and 173b, protruding 163a and the 163b of itself and linear Ohmic contact part 161a and 161b are overlapping, and towards drain electrode 175a and 175b and end 179a and 179b with the amplification width that is used to be connected to other layer or outer projection extend.

Drain electrode 175a and 175b mainly are being parallel to the transversely extension of data line 171a and 171b, and have and storage electrode 133a and overlapping enlarging section 177a and the 177b of 133b.The enlarging section 177a of drain electrode 175a and 175b and the side of 177b are basically parallel to the side of storage electrode 133a and 133b.Gate electrode 124a and 124b, source electrode 173a and 173b and drain electrode 175a and 175b constitute TFT Qa and Qb respectively with semiconductor 154a and 154b.The passage of TFT Qa and Qb is being respectively formed on semiconductor 154a and the 154b between source electrode 173a and 173b and drain electrode 175a and the 175b, and between protruding 163a and 163b and island shape Ohmic contact part 165a and the 165b.

Data line 171a and 171b and drain electrode 175a and 175b preferably by chromium (Cr), based on the metal of molybdenum (Mo) or such as the refractory metal of tantalum (Ta) and titanium (Ti), and can have lower layer (not shown) of making by refractory metal and the upper layer (not shown) of making by low resistivity materials disposed thereon.

As the example of sandwich construction, except that the above-mentioned double-layer structure of following chromium or molybdenum layer and upper aluminum layer, the three-decker of molybdenum layer/aluminium lamination/molybdenum layer can be arranged.In this structure, the interval between two adjacent data line 171a and the 171b remains on the minimum interval by considering productive capacity and output, thereby the aspect ratio that relates to data line 171a and 171b quantity and increase reduces and can minimize.

Similar with gate line 121 and storage electrode line 131, the side surface of data line 171a and 171b and drain electrode 175a and 175b with respect to substrate 110 tilt to have about 30 ° to about 80 ° angle.

Ohmic contact part 161a, 161b, 163a, 163b, 165a and 165b only based on the linear semiconductor 151a of lower floor and 151b and protruding 154a and 154b and on cover between (overlying) data line 171a and 171b, source electrode 173a and 173b and drain electrode 175a and the 175b, and have the function that reduces contact resistance.Linear semiconductor 151a and 151b and protruding 154a and 154b have the shape of the shape that is equal to or less than data line 171a and 171b, source electrode 173a and 173b, drain electrode 175a and 175b and Ohmic contact part 161a, 161b, 163a, 163b, 165a and 165b substantially.But linear semiconductor 151a and 151b have at unlapped expose portion between source electrode 173a and 173b and drain electrode 175a and the 175b and between protruding 163a and 163b and island shape Ohmic contact part 165a and 165b.

Diaphragm (passivation layer) 180 is formed on the exposed raised 154a and 154b of data line 171a and 171b, source electrode 173a and 173b, drain electrode 175a and 175b and semiconductor 151a and 151b.Passivating film 180 by such as the inorganic material of silicon nitride and monox, have outstanding polarization characteristic and photosensitive organic material and make such as the low dielectric constant insulating material that plasma enhanced chemical vapor deposition (" PECVD ") forms that passes through of a-Si:C:O and Si:O:F.But, in order to use the outstanding characteristic of organic membrane, and protection semiconductor 151a and the protruding 154a of 151b and the expose portion of 154b, diaphragm 180 can have the double-decker that comprises bottom inoranic membrane and top organic membrane.

In diaphragm 180, form the enlarging section 177a and the end 179a of 177b and data line 171a and 171b and a plurality of contact hole 185a, 185b, 182a and the 182b that 179b exposes that make drain electrode 175a and 175b.And, a plurality of contact holes 181 of end 129 exposures of gate line 121 are formed in diaphragm 180 and the gate insulation layer 140.

On diaphragm 180, form a plurality of pixel electrodes 190, a plurality of guarded electrode 88 and a plurality of auxiliary member 81,82a and the 82b of contacting that comprise the first and second pixel electrode 190a and 190b.Pixel electrode 190, guarded electrode 88 and contact auxiliary member 81,82a and 82b by making such as the transparent conductive material of ITO and IZO or such as the reflective conductive material of aluminium.

The first and second pixel electrode 190a and 190b are by contact hole 185a and 185b physics and be electrically connected to drain electrode 175a and 175b, to receive data voltage from drain electrode 175a and 175b.About the predetermined different pieces of information voltage of single received image signal be provided for pixel electrode 190a and 190b right, and the size of data voltage can be determined according to size and the shape of pixel electrode 190a and 190b.Pixel electrode 190a can have different zones with 190b, and for example, pixel electrode 190a can have and is nested in the pixel electrode 190b but separated shape below will be described.

The pixel electrode 190a and the 190b that provide data voltage produce electric field with common electrode 270, to determine the Liquid Crystal Molecules Alignment of the liquid crystal layer 3 between two pixel electrode 190a, 190b and the common electrode 270.

The first and second sub-pixel band 190a of grade and 190b and common electrode 270 constitute capacitor (, being called " liquid crystal capacitor " at this) C LCaAnd C LCb, so that the voltage that provides by TFT Qa and Qb keeps disconnecting.In order to increase the store voltages ability, provide the parallel liquid crystal capacitor C that is connected to LCaAnd C LCbOther capacitor, and capacitor is called as holding capacitor C STaAnd C STbHolding capacitor C STaAnd C STbBy the first and second pixel electrode 190a and 190b and storage electrode line 131 are overlapped.In order to increase holding capacitor C STaAnd C STbElectric capacity, promptly, memory capacitance, storage electrode 133a and 133b are provided for storage electrode line 131, and overlapping with enlarging section 177a and the 177b of drain electrode 175a that is connected to the first and second pixel electrode 190a and 190b by the first and second contact hole 185a and 185b and 175b, so that the distance between the port reduces and amplify the overlapping region.

The upper right corner corresponding to each pixel electrode 190 of pixel electrode 190b is cut off, and a side of cutting away has about 45 about gate line 121.

Constitute the first and second pixel electrode 190a of a pixel electrode 190 and 190b pair and combine with gap 93 between wherein, and the outer boundary of pixel electrode 190 has the shape that is roughly rectangle.The first pixel electrode 190a has the antiparallelogram shape of rotation, it has contiguous and be basically parallel to the left side that data line 171a extends with storage electrode 133a, and is relative with the left side and be basically parallel to the right side of data line 171b extension and the upper and lower inclined side that has about 45 about gate line 121.The upper and lower inclined side of the first pixel electrode 190a is basic vertical mutually.The second pixel electrode 190b has trapezoidal of a pair of inclined side of facing the first pixel electrode 190a and in the face of the transverse part on the right side of the first pixel electrode 190a.In addition, the gap comprises having basic width uniformly and with respect to the upper and lower rake 93a and the 93b of gate line 121 about 45s, and has the transverse part 93c of basic even width.Transverse part 93c comprises first end and second end, and wherein upper inclined portion 93a extends from first end of transverse part 93c, and the second end extension of the 93b of portion from transverse part 93c that have a down dip.At this, for convenience of description, gap 93 is represented as opening.

Pixel electrode 190 has central opening 91 and 92, upper shed 93a and 94a and under shed 93b and 94b, pixel electrode 190 is divided into a plurality of zones by opening 91,92,93a, 93b, 94a and 94b, wherein, opening 93a and 93b are corresponding to making pixel electrode 190a and 190b divide the upper inclined portion of opening and the portion that has a down dip.Opening 91,92,93a, 93b, 94a and 94b are with respect to the roughly anti-phase symmetry of storage electrode line 131.That is, be arranged on the mirror image that upper shed on first side of storage electrode line 131 may be substantially of the under shed on second side that is arranged on storage electrode line 131.

Upper and lower opening 93a, 93b, 94a and 94b in an inclined direction extend to its right side from pixel electrode 190, and are separately positioned in upper and lower half zone about storage electrode line 131, and it divides storage electrode line 131 in the vertical.Upper and lower opening 93a, 93b, 94a and 94b have about 45 with respect to gate line 121, and upper shed 93a and 94a extend perpendicular under shed 93b and 94b, and central opening 91 and 92 has a pair of branch (branch), and it is basically parallel to upper shed 93a and 94a and under shed 93b and 94b.Central opening 91 and 92 also has the longitudinal part that the heart therein extends longitudinally, such as along storage electrode line 131.

Therefore, pixel electrode 190 first halves and Lower Half are divided into four zones respectively by opening 91,92,93a, 93b, 94a, 94b.At this moment, region quantity or open amount according to pixel size, pixel electrode 190 widthwise edges and vertically edge lengths than the kind of, liquid crystal layer 3 or characteristic etc. factor is set and different.

Pixel electrode 190 is overlapping to improve aperture opening ratio (apertureratio) with adjacent gate lines 121.

Guarded electrode 88 extends along data line 171a, 171b and gate line 121, be positioned at the complete cover data line of part 171a, the 171b on data line 171a, 171b top, the partial width that is positioned at gate line 121 tops is littler than gate line 121 width, and is positioned at gate line 121 boundary lines.Two data line 171a between two adjacent pixel electrodes 190,171b conductively-closed electrode 88 cover.As selection, the width that also can adjust guarded electrode 88 is littler than data line 171a, 171b, and/or the boundary line of guarded electrode 88 can be positioned at the outside, gate line 121 boundary lines.Press V in order to apply common-battery to guarded electrode 88 Com, guarded electrode 88 can be connected with storage electrode line 131 by the contact hole (not shown) in diaphragm 180 and the gate insulator 140, or with the common-battery pressure is connected from the short dot (not shown) that TFT panel 100 is transferred to common-battery pole plate 200.At this moment, preferably,, should design distance between guarded electrode 88 and the pixel electrode 190 minimum in order to make the reduction minimum of aspect ratio.

By such setting, if will be applied in the guarded electrode 88 of common-battery pressure places on data line 171a, the 171b, then guarded electrode 88 maskables fall between data line 171a, 171b and the pixel electrode 190 and the electric field that generates between data line 171a, 171b and the common electrode 270, make the voltage distortion of pixel electrode 190 and are delayed and distortion is minimized by the data voltage of data line 171a, 171b transmission.

And owing to preventing that pixel electrode 190 and guarded electrode 88 short circuits from separate it mutually, thereby pixel electrode 190 can further separate with data line 171a, 171b, thereby reduced the stray capacitance between them.In addition, because the specific inductive capacity of liquid crystal layer 3 is higher than the specific inductive capacity of diaphragm 180, thereby the stray capacitance between data line 171a, 171b and the common electrode 270 during less than unshielded electrode 88 of the stray capacitance between data line 171a, 171b and the guarded electrode 88.

And because pixel electrode 190 and guarded electrode 88 be by making with one deck, so keep same distance between them, thereby the stray capacitance between them is also consistent.

Contact auxiliary member 81,82a, 82b are connected with the end 129 of gate line 121 and end 179a, the 179b of data line 171a, 171b respectively by contact hole 181,182a, 182b.Contact auxiliary member 81,82a, 82b play the end 129 of supply gate polar curve 121 exposures and end 179a, 179b and stickability between the external device (ED) that data line 171a, 171b expose and the effect of protecting them.

When the gate drivers shown in Fig. 1 400 or data driver 500 were integrated in the TFT panel 100, gate line 121 or data line 171a, 171b extended to directly and are connected with them.In this case, contact auxiliary member 81,82a, 82b can be used for gate line 121 or data line 171a, 171b are connected with driver 400,500 respectively.

On pixel electrode 190, contact auxiliary member 81,82a, 82b and diaphragm 180, be coated with the alignment films 11 that is used to arrange liquid crystal layer 3.Alignment films 11 may be the homeotropic alignment film.

Below with reference to Fig. 5 to Fig. 7 a common electrode panel 200 is described.

On the dielectric substrate of making by clear glass or analog (for example other transparent insulation material) 210, form the shading piece 220 (being also referred to as black battle array) that prevents light and leak.

Shading piece 220 comprises pixel-oriented electrode 190 and has basically a plurality of peristomes identical shaped with pixel electrode 190.Perhaps, shading piece 220 can be by forming corresponding to the part of data line 171a, 171b with corresponding to the part of TFT Qa, Qb.But shading piece 220 can have multiple shape near the light that covers pixel electrode 190 and TFT Qa, the Qb leaks.

Be formed with a plurality of color filters 230 on the substrate 210.Color filter 230 is positioned at the most of zone that is surrounded by shading piece 220, and along pixel electrode 190 horizontal expansions.

Color filter 230 can show redness, green, blueness or other color of not describing herein in a kind of.

Formed coverlay 250 on color filter 230 and the shading piece 220, thereby prevented to expose color filter 230 and tabular surface is provided.

Be formed with the common electrode of making by for example transparent conductive materials such as (but being not limited to) ITO, IZO 270 on the coverlay 250.

Common electrode 270 comprises a plurality of opening 71-74b as shown in Figure 5 and Figure 6.

Face for one in opening 71-74b and the pixel electrode 190, comprise central opening 71,72, upper opening 73a, 74a and lower openings 73b, 74b.Opening 71-74b places between the opening 91-94b of adjacent pixel electrodes 190 and between the side of opening 94a, 94b and pixel electrode 190.And each opening 71-74b comprises at least one sloping portion that the opening 91-94b with pixel electrode 190 extends in parallel.

Top and lower openings 73a-74b comprise: from the rake that extends to its downside or upper side edge corresponding to the part of the common electrode 270 on each pixel electrode 190 right sides; And vertically and/or transverse part, from the end of rake along corresponding to the part of the common electrode 270 of the side of pixel electrode 190 with the obtuse-angulate situation of rake under extend, and with overlapping corresponding to the common electrode 270 of the side of pixel electrode 190.

Central opening 71 comprises: from the central transverse part of left side horizontal expansion; From central transverse part end with the situation of central transverse part bevel under, to the pair of angled portion of extending corresponding to the part of the common electrode 270 on limit, pixel electrode 190 left side; And distal-lateral portion, from each of rake terminal along corresponding to the part of the common electrode 270 on limit, pixel electrode 190 left side with the obtuse-angulate situation of rake under extend, and with overlapping corresponding to the common electrode 270 on limit, pixel electrode 190 left side.Central opening 72 comprises: transverse part, extend along part corresponding to the common electrode 270 of pixel electrode 190 right edge, and with overlapping corresponding to the common electrode 270 of pixel electrode 190 right edge; Pair of angled portion extends to the part corresponding to the common electrode 270 on limit, pixel electrode 190 left side from each end of transverse part; And distal-lateral portion, from the end of rake along corresponding to the part of the common electrode 270 on limit, pixel electrode 190 left side with the obtuse-angulate situation of rake under extend, and with overlapping corresponding to the common electrode 270 on limit, pixel electrode 190 left side.Because common electrode 270 can cover the whole surface of common electrode panel 200 basically, so the pattern of opening 71-74b described herein can repeat in each pixel region of TFT panel 100.

In the rake of opening 71-74b, be formed with leg-of-mutton notch.Alternatively, these notches can have quadrangle, trapezoidal or semi-circular shape, also can protrude or cave in.Because these notches, the Liquid Crystal Molecules Alignment direction of liquid crystal layer 3 that is positioned at the border of corresponding and opening 71-74b can be determined.

The quantity of opening 71-74b is according to design factor and difference, and shading piece 220 can be overlapping with opening 71-74b, leaks with near the light the shielding opening 71-74b.

Owing to what apply to common electrode 270 and guarded electrode 88 is that identical common-battery is pressed V Com, so do not produce electric field between them basically.Thereby the liquid crystal molecule in the liquid crystal layer 3 between common electrode 270 and guarded electrode 88 is kept the form of initial stage homeotropic alignment, and therefore inciding this regional light can not see through.

Among opening 91-94b and the 71-74b at least one can substitute by raised or sunken, and, though be given shape and the arrangement that the example purpose has been described opening 91-94b and 71-74b, the shape of opening 91-94b and 71-74b and arrangement can change in alternative embodiment.

Be coated with the alignment films 21 that liquid crystal layer 3 is arranged on common electrode 270 and the coverlay 250.Alignment films 21 can be the homeotropic alignment film.

Be provided with polarizer 12,22 on the outside surface of panel 100,200.The axis of homology of these two polarizers 12,22 meets at right angles, one of them axis of homology (or absorption axes) and parallel longitudinal.Under the situation of reflection LCD, can omit in two polarizers 12,22.

Liquid crystal layer 3 has negative anisotropy specific inductive capacity, and when not when liquid crystal molecule applies electric field, the liquid crystal molecule of liquid crystal layer 3 is arranged along its main shaft, and with the Surface Vertical of two panels 100,200.

If apply common-battery pressure and data voltage to common electrode 270 and pixel electrode 190 respectively, then the direction on the surface that is basically perpendicular to panel 100,200 produces electric field.Opening 91-94b, the 71-74b of electrode 190,270 makes this electric field distortion, to generate the horizontal component perpendicular to the side of opening 91-94b, 71-74b.

Thus, electric field is in and tilts perpendicular to the direction on panel 100,200 surfaces.

In response to direction of an electric field, the liquid crystal molecule in the liquid crystal layer 3 has changes into the trend vertical with direction of an electric field with major axes orientation.At this moment, owing to the not parallel predetermined angular that forms of the major axes orientation of electric field in the side adjacent domain of opening 91-94b, 71-74b and pixel electrode 190 and liquid crystal molecule, therefore, on the plane that the major axes orientation of liquid crystal molecule and electric field form, liquid crystal molecule is to the short direction rotation of displacement.Therefore, the zone that the side of a group of opening 91-94b, 71-74b and pixel electrode 190 will be positioned at the liquid crystal layer 3 on the pixel electrode 190 is divided into a plurality of zones that liquid crystal molecule has different angle, thereby can increase the benchmark visual angle.

Describe the operation of LCD device below in detail.

As shown in Figure 1, signal control part 600 receives red, green and blue received image signal R, G, B from the graphics controller (not shown) of outside, reaches the input control signal that control shows.The example of input control signal comprises vertical synchronizing signal Vsync, horizontal-drive signal Hsync, major clock MCLK and data enable signal DE etc.Signal control part 600 is according to the operating conditions of LCD panel assembly 300, suitably handle received image signal R, G, B based on received image signal R, G, B and input control signal, to generate grid control signal CONT1 and data controlling signal CONT2, then the grid control signal CONT1 that generates is outputed to gate drivers 400, data controlling signal CONT2 that generates and the picture signal DAT that has handled are outputed to data driver 500.Here, definite middle mapping (mapping) execution of storing of question blank (look-uptable) such as utilization experiment are in advance passed through in the conversion of picture signal, or by signal control part 600 computings formation.

Grid control signal CONT1 comprises: order grid cut-in voltage V OnThe scanning commencing signal STV of scanning beginning; With control grid cut-in voltage V OnAt least one gate clock signal CPV of output time.Output enable signal OE can further limit grid cut-in voltage V OnDuration.

Data controlling signal CONT2 comprises: notice is to the horizontal synchronization commencing signal STH of sub-pixel PXa of delegation and PXb transmission data; Order is to data line D 1-D 2mApply the load signal LOAD of corresponding data voltage; And data clock signal HCLK.Data controlling signal CONT2 comprises that also reversal data voltage presses V with respect to common-battery ComThe reverse signal RVS of polarity (following handle " data voltage is with respect to the polarity of common voltage " abbreviates " data voltage polarity " as).

In response to data controlling signal CONT2 from signal control part 600, data driver 500 receives the view data DAT of the sub-pixel PXa of delegation, PXb successively, and from from the gray-scale voltage of selecting the gray-scale voltage of gray-scale voltage maker 800 corresponding to each view data DAT, thereby view data DAT is converted to relevant analog data voltage, then data voltage is applied to corresponding data line D 1-D 2m

In response to the grid control signal CONT1 from signal control part 600, gate drivers 400 is successively to gate lines G 1-G nApply grid cut-in voltage V On, with by being connected in gate lines G 1-G nGate electrode open on-off element Qa and Qb.Thus, be applied to data line D 1-D 2mData voltage be applied to corresponding sub-pixel PXa and PXb by the on-off element Qa that opened and the drain electrode of Qb, it receives data voltage by the source electrode.

The data voltage and the common-battery that are applied to sub-pixel PXa and PXb are pressed V ComDifference become the charging voltage of liquid crystal capacitor CLca, CLCb, i.e. sub-pixel voltage.The arrangement of liquid crystal molecule changes with the intensity of sub-pixel voltage.Therefore, the polarisation of light by liquid crystal layer 3 changes.The variation of this polarization has caused owing to be attached to the variation of the light transmission that the polarizer 12 and 22 of panel 100 and 200 causes.

An input image data is converted to a pair of output image data, and output image data provides different transmissivities to a pair of sub-pixel PXa with PXb.Therefore two sub-pixel Pxa and PXb show the gamma curve that differs from one another, and the gamma curve of a pixel PX be their the synthesizing of gamma curve.

If through 1 horizontal cycle (or " 1H ", that is, the one-period of horizontal-drive signal Hsync and data enable signal DE), then data driver 500 and gate drivers 400 pairs of next line sub-pixels PXa and PXb carry out identical operations repeatedly.In this way, in a frame, to all gate lines G 1-G nApply grid cut-in voltage V successively OnThereby, apply data voltage to all sub-pixel PXa and PXb.Finish a frame and just begin next frame, control is applied to the state of the reverse signal RVS (part of data controlling signal CONT2) of data driver 500, makes the data voltage polarity that is applied to each sub-pixel PXa and PXb opposite with previous frame polarity (" frame counter-rotating ").Perhaps, in a frame,, can change the polarity (row counter-rotating, some counter-rotating) of the data voltage that flows through data line according to the characteristic of reverse signal RVS.

Describe pixel electrode polarity and counter-rotating form in detail below with reference to Fig. 8 a and Fig. 8 b according to first embodiment of LCD device of the present invention.

Fig. 8 a and Fig. 8 b illustrate the polarization state according to the pixel electrode of first embodiment of LCD device of the present invention.

Shown in Fig. 8 a, flow through two data lines being connected with PXb with a pair of sub-pixel Pxa that constitutes a pixel PX (D for example jAnd D J+1) the polarity of data voltage mutually the same.But, flow through two data lines placing between adjacent two pixel PX (D for example J+1And D J+2) the polarity of data voltage opposite each other, to change the polarity of neighbor.In the some counter-rotating of polarity of pixel electrode 190 of reversing of each pixel, but also can adopt per two pixels to carry out the 1+2 inversion mode of reversed polarity shown in Fig. 8 a.According to this reversing mode, because it is identical to form the polarity of two pixel electrode 190a of a pixel electrode 190 and 190b, therefore light can take place in the gap 93 between pixel electrode Pxa and PXb leak.

On the other hand, shown in Fig. 8 b, flow through two data lines (D for example of a pair of sub-pixel PXa that constitutes a pixel PX and PXb jAnd D J+1) data voltage polarity differ from one another.Yet, flow through two data lines placing between adjacent two pixel PX (D for example J+1And D J+2Data voltage polarity identical.Because the polarity of adjacent data line is identical, thus the load of data line reduce, thereby the charging that can prevent data voltage delay, and increase the driving surplus of data driver 500.

Describe second embodiment in detail below with reference to Fig. 9 and Fig. 2 according to LCD device of the present invention.

Fig. 9 is the block scheme according to second embodiment of LCD device of the present invention.

As shown in Figure 9, this LCD device comprises LCD panel assembly 300, the gate drivers 400 and the data driver 500 that are connected with this LCD panel assembly 300, the signal controller 600 that is connected in the gray-scale voltage maker 800 of data driver 500 and controls these parts.

Because second embodiment according to LCD device of the present invention is basic identical with the LCD device shown in Fig. 1, thereby saves the description to same parts, different parts are only described.

LCD panel assembly 300 comprises: as the lower panel 100 of TFT panel; As the upper panel 200 of common electrode panel, panel 100 and 200 faces with each other; And intervenient liquid crystal layer 3.LCD panel 300 further comprises many signal line G 1-G n, D 1-D 2mWith a plurality of pixel PX that are connected in these signal wires, these a plurality of pixel PX are arranged on the lower panel 100 with matrix form substantially.

Display signal line G 1-G nAnd D 1-D 2mComprise many gate lines G 1-G nWith many data line D 1-D 2mAs shown in Figure 9, the same with first embodiment, each pixel PX comprises a pair of sub-pixel Pxa and PXb and is connected in the sub-pixel Pxa of each pixel and two data line D of PXb 1-D 2m, they are positioned at a side of each pixel, rather than at the opposite side of each pixel.Though Fig. 9 shows two data line D 1-D 2mPlace the situation in the left side of a pixel, but also can place the right side.

Odd number bar data line D 2j-1Be connected even number bar data line D with the on-off element Qb of sub-pixel PXb 2jBe connected with the on-off element Qa of sub-pixel Pxa.In other words, data line alternately is connected with Qb with on-off element Qa.For fear of data line D 2j-1With data line D 2jConnection with contact, at data line D 2j-1And be connected with electric bridge line (bridge wire) (not shown) between the on-off element Qb.

The following structure that the LCD device is described with reference to Figure 10 to Figure 13.

Figure 10 is the layout layout according to the TFT panel of second embodiment of LCD device of the present invention, and Figure 11 is the layout according to the common electrode panel of second embodiment of LCD device of the present invention.Figure 12 is the layout of second embodiment of the LCD device that constitutes of the common-battery pole-face by the TFT panel of Figure 10 and Figure 11, and Figure 13 is the sectional view along the LCD device of the XIII-XIII ' line intercepting of Figure 12.

To shown in Figure 13, because basic identical with the hierarchy of the LCD device shown in Fig. 4 to Fig. 7 b according to the hierarchy of second embodiment of LCD device of the present invention, the therefore explanation of omitting same section describes distinguishing part as Figure 10.

In TFT panel 100, many gate lines 121 that comprise a plurality of gate electrodes 124, a plurality of storage electrode lines 131 that comprise a plurality of storage electrode 133a and 133b and a plurality of bridge 127 that is connected have been formed on the substrate 110.

Connect bridge 127 by making, and be positioned at the identical layer of TFT panel 100 with them with gate line 121 and storage electrode line 131 identical materials.And, connects bridge 127 and be basically parallel to gate line 121 and storage electrode line 131 extensions, but different shape directions also belongs within the scope of these embodiment.

Gate insulator 140, semiconductor 151a and 151b, Ohmic contact parts 161a, 161b, 163b, 165a and 165b are formed on gate line 121, storage electrode line 131 successively and are connected on the bridge 127.

Be formed with many data line 171a and 171b on Ohmic contact parts 161a, 161b, 163b, 165a and the 165b successively, and divide multiple source electrode 173a and 173b and a plurality of drain electrode 175a and the 175b that opens with data line 171a and 171b.Because source electrode 173b is connected to the contiguous data line 171b of pixel electrode 190 sides identical with data line 171a, source electrode 173b is along opening with source electrode 173a equidirectional.

Data line 171b comprises laterally a plurality of first and second part 171p and the 171q that (being basically perpendicular to gate line 121) extended and be separated from each other.The end of first and second part 171p, the 171q of data line 171b is overlapping with the first end that is connected bridge 127, and is electrically connected to each other.And the part of source electrode 173b is overlapping with the second end that is connected bridge 127, and is electrically connected with data line 171b.

At data line 171a and 171b, source electrode 173a and 173b, drain electrode 175a and 175b, the exposure projection 154a that reaches semiconductor 151a, 151b and 154b formation diaphragm 180, for example passivation layer.

In diaphragm 180, be formed with a plurality of contact hole 182a, 182b, 185a and 185b, be formed with other a plurality of contact holes 181,187a and 187b in diaphragm 180 and the gate insulator 140.

On diaphragm 180, be formed with a plurality of pixel electrode 190a and 190b, guarded electrode 88, a plurality of auxiliary member 81,82a and 82b, and a plurality of web member 87a and 87b of contacting.

Web member 87a and 87b by with pixel electrode 190a and 190b, guarded electrode 88, and contact auxiliary member 81,82a and 82b identical materials and form, and be positioned at identical layer, and has the function that connects data line 171b, connection bridge 127 and source electrode 173b by contact hole 187a, 187b.On the other hand, guarded electrode has depressed part, thereby does not contact with web member 87a, and pixel electrode 190b has opening (opening) 197, thereby does not contact with web member 87b.

In common electrode panel 200, be formed with shading piece 220 and a plurality of color filter 230 on the substrate 210, coverlay 250 is formed thereon, and common electrode 270 is formed on the coverlay 250.Shading piece 220 comprises the island shape shading piece 221 that covers TFT Qb.

Be formed with alignment films 11 and 21 at panel 100 and 200 medial surfaces, be formed with polarizer 12 and 22 at lateral surface.

Describe the polarity and the reversing mode of the pixel electrode of LCD device in detail below with reference to Figure 14.

Figure 14 illustrates the polarization state according to the pixel electrode of second embodiment of LCD device of the present invention.

As shown in figure 14, flow through two data lines (D for example of a pair of sub-pixel PXa that constitutes a pixel PX and PXb jAnd D J+1) the polarity of data voltage identical.And two data lines of same pixel PX place between two pixel PX adjacent one another are.

Therefore, because it is mutually the same to constitute the polarity of two pixel electrode 190a of a pixel electrode 190 and 190b, therefore described as the front with respect to first exemplary embodiment of LCD device, light can not take place in the opening 93 between sub-pixel PXa and PXb to be leaked.

In addition, because the polarity of the adjacent data line of each pixel PX is mutually the same, the load on the data line reduces, and can prevent that therefore the charging of data voltage from postponing and increasing the driving surplus of data driver 500.

On the other hand, although Figure 14 illustrates the some counter-rotating that the polarity of pixel electrode 190 is reversed in every pixel, the 1+2 inversion mode that also can adopt per two pixels of polarity to reverse.

Now, with reference to Figure 15 the 3rd exemplary embodiments of LCD device is according to an embodiment of the invention described.

Figure 15 is the block diagram that illustrates according to the 3rd exemplary embodiments of LCD device of the present invention.

As shown in figure 15, the LCD device comprises: LCD panel assembly 300; Gate drivers 400 and data driver 500 are connected to LCD panel assembly 300; Grayscale voltage generator 800 is connected to data driver 500; And signal controller 600, be used for control assembly.

Because roughly the same with LCD device shown in Figure 1, so will only be described and omit description same parts to different parts according to the 3rd exemplary embodiments of LCD device of the present invention.

LCD panel assembly 300 comprises: lower panel 100, as the TFT panel; Upper panel 200, as the common electrode panel, wherein, panel 100 and 200 faces with each other, and liquid crystal layer 3 is between between it.The LCD panel further comprises many signal line G 1-G nAnd D 1-D 2m, and a plurality of pixel PX is connected with it and roughly becomes arranged on lower panel 100.

Display signal line G 1-G nAnd D 1-D 2mComprise many gate lines G 1-G nWith many data line D 1-D 2mEach of pixel PX includes a pair of sub-pixel PXa and PXb, and is connected to two data line D of sub-pixel PXa and PXb 1-D 2mBe arranged on a side of each sub-pixel.Therefore, each pixel PX is separated by of two data lines of the every row that are used for pixel PX.Although Figure 15 illustrates wherein two data line D 1-D 2mBe arranged on the layout in the left side of each sub-pixel, but data line can be arranged on its right side.

The aspect ratio of a pixel PX is roughly 1: 3, and if the size of sub-pixel PXa and PXb be equal to each other, then the aspect ratio of each of sub-pixel PXa and PXb is roughly 1: 6.In order to increase side visibility, the lateral length of sub-pixel PXa and PXb is designed to differ from one another.

The structure of LCD device is described with reference to Figure 16 to 19 below.

Figure 16 illustrates the view that is used for according to the layout of the example T FT panel of the 3rd exemplary embodiments of LCD device of the present invention, and Figure 17 illustrates the view that is used for according to the layout of the exemplary common electrode panel of the 3rd exemplary embodiments of LCD device of the present invention.Figure 18 is the view of layout of the 3rd exemplary embodiments of LCD device that is configured with the exemplary common electrode panel of the example T FT panel of Figure 16 and Figure 17.Figure 19 is the cross-sectional view that illustrates along the LCD device of the XIX-XIX ' line of Figure 18 intercepting.

Each pixel PX of LCD device comprises two sub-pixel PXa and the PXb with same general configuration.

Therefore, in the following description, will describe a sub-pixel Pxa, and will omit being repeated in this description another sub-pixel PXb.

The LCD device comprises TFT panel 100 and the common electrode panel 200 that faces with each other, and the liquid crystal layer 3 between two panels 100 and 200.

At first, with reference to Figure 16,18 and 19 TFT panel 100 is described.

Many gate lines 121 and many storage electrode lines 131 are arranged on the electric substrate of making by clear glass or such as other transparent insulation material etc. 110.

Mainly the gate line 121 that extends at first direction (such as vertically) is separated from each other, and the transmission signal.Every gate line 121 comprises: a plurality of projectioies constitute a plurality of gate electrode 124a; And end 129, have wide zone and be used to be connected to other layer or external device (ED).Gate electrode 124a can be positioned at the position near first corner of sub-pixel PXa.

Mainly roughly parallel with gate line 121 at the storage electrode line 131 of first direction (such as vertically) extension, and comprise a plurality of protrusions that constitute storage electrode 133a.

Each storage electrode 133a is a rectangle, and has the axis of symmetry with respect to storage electrode line 131.Press the predetermined voltage of Vcom to be applied to the common electrode 270 of the common electrode panel 200 of LCD device such as common-battery, also be applied to storage electrode line 131.

Gate line 121 and storage electrode line 131 can be made by following material: such as the aluminium based metal of aluminium (Al) and aluminium alloy, such as the silver-base metal of silver (Ag) and silver alloy, such as the copper base metal of copper (Cu) and aldary, molybdenum Base Metal, chromium (Cr), titanium (Ti) or tantalum (Ta) such as molybdenum (Mo) and molybdenum alloy.

Alternatively, gate line 121 can have the sandwich construction that comprises two conductive layer (not shown) with different physical characteristicss with storage electrode line 131.In this case, can make by metal for one in two conductive layers with low-resistivity, for example, aluminium based metal, silver-base metal, copper base metal, to reduce the signal delay and the voltage drop of gate line 121 and storage electrode line 131, and another conductive layer can be made by the material that other metal (particularly ITO and IZO) is had excellent contact, such as molybdenum Base Metal, chromium, titanium and tantalum.

The preferred embodiment of this combination is that sandwich construction can comprise chromium layer and upper aluminum layer and lower aluminum layer and last molybdenum layer down.

Yet,, should be appreciated that gate line 121 and storage electrode line 131 can be made by various metals and conductive material though shown specific embodiment.

In addition, the side of gate line 121 and storage electrode line 131 is with respect to the surface tilt of substrate 110, and preferably, the pitch angle is in about 30 ° to 80 ° scope.

The gate insulator 140 that is formed by silicon nitride SiNx etc. is formed on gate line 121 and the storage electrode line 131, and can further be formed on the expose portion that is not covered by gate line 121 and storage electrode line 131 of substrate 110.

The a plurality of island shape semiconductor 154a that made by hydrogenation a-Si are formed on above the gate insulator 140.Island shape semiconductor 154a mainly is arranged on the gate electrode 124a.

Be doped with a plurality of island shape Ohmic contact part 163a and the 165a that makes such as the n type impurity of phosphorus (P) by silicide or n+ hydrogenation a-Si etc., be formed on the semiconductor 154a.The two couples of island shape Ohmic contact part 163a and 165a are arranged on semiconductor 154a and go up and face with each other with respect to the gate electrode 124a as its center.

The side of island shape semiconductor 154a and Ohmic contact part 163a and 165a is equally with respect to the surface tilt of substrate 110, and the pitch angle is in about 30 ° to 80 ° scope.

Many data line 171a and be formed on 163a and 165a and the gate insulator 140 with a plurality of drain electrode 175a that many data line 171a separate.

Data line 171a is mainly extending in second direction (such as laterally), with generally perpendicularly crossing with gate line 121 and storage electrode line 131, and applies data voltage.Data line 171a has: multiple source electrode 173a, and overlapping and extend with Ohmic contact part 163a towards drain electrode 175a; And end 179a, the width with expansion is to be connected to other layer or external device (ED).

Drain electrode 175a is mainly in horizontal expansion, and 171a is parallel with data line, and has the expansion section 177a overlapping with storage electrode 133a.The side of the expansion section 177a of drain electrode 175a is roughly parallel to the side of storage electrode 133a.Gate electrode 124a, source electrode 173a and drain electrode 175a and semiconductor 154a constitute TFT Qa.The passage of TFT Qa is formed at respectively on the semiconductor 154a between source electrode 173a and the drain electrode 175a.

Data line 171a and drain electrode 175a preferably make by chromium, molybdenum Base Metal or such as the refractory metal of tantalum and titanium, and can have sandwich construction, this sandwich construction is configured with the lower floor's (not shown) made by refractory metal and the upper strata (not shown) of being made by low resistivity material disposed thereon.

As the example of sandwich construction, except the double-layer structure of above-mentioned chromium down or molybdenum layer and upper aluminum layer, can also there be the three-decker of molybdenum layer/aluminium lamination/molybdenum layer.

Be similar to gate line 121 and storage electrode line 131, the side of data line 171a and drain electrode 175a is with respect to the surface tilt of substrate 110, and the pitch angle is in about 30 ° to 80 ° scope.

Ohmic contact part 163a and 165a only between bottom semiconductor 154a and between data line 171a, the source electrode 173a and drain electrode 175a that cover, and have the effect that reduces contact impedance.The expose portion that island shape semiconductor 154a has between source electrode 173a and drain electrode 175a and do not covered by data line 171a and drain electrode 175a.

Diaphragm 180 such as passivation layer is formed on the semiconductor 154a of data line 171a, source electrode 173a, drain electrode 175a and exposure.Diaphragm 180 by such as the inorganic material of silicon nitride and monox, have the organic material of good complanation characteristic and light sensitive characteristic and contact insulating material (such as a-Si:C:O and a-Si:O:F) and make by the low dielectric that PECVD forms.Yet for good characteristic that uses organic membrane and the expose portion of protecting semiconductor 154a, diaphragm 180 can have the double-layer structure that comprises bottom inorganic layer and top organic layer.

In diaphragm 180, be formed with a plurality of contact hole 185a and the 182a of the end 179a of the part 177a of the amplification that is used to expose drain electrode 175a and data line 171a, and a plurality of contact holes 181 that expose the end 129 of gate line 121 are formed in diaphragm 180 and the gate insulator 140.

On protective seam 180, be formed with a plurality of pixel electrode 190a, a plurality of guarded electrode 88 and a plurality of contact auxiliary member 81 and 82a.Pixel electrode 190a, guarded electrode 88 and contact auxiliary member 81 and 82a are by making such as the transparent conductive material of ITO and IZO with such as the reflective conductive material of aluminium.

Pixel electrode 190a by contact hole 185a physically and be electrically connected to drain electrode 175a, to receive data voltage from drain electrode 175a.

The pixel electrode 190a that is applied with data voltage produces electric field together with common electrode 270, the feasible arrangement that can determine the liquid crystal molecule of the liquid crystal layer 3 between two electrode 190a and 270.

Pixel electrode 190a and common electrode 270 constitute liquid crystal capacitor C LCaEven TFTQa closes the voltage that applies that also can continue.Be connected in parallel to liquid crystal capacitor C in order to increase the store voltages capacity, to be provided with LCaHolding capacitor C STaEach holding capacitor C STaConstitute by covering pixel electrode 190a and storage electrode line 131.In order to increase holding capacitor C STaElectric capacity, promptly, memory capacity, storage electrode 133a is set to storage electrode line 131 and overlapping with the part 177a of the amplification of the drain electrode 175a that is connected to pixel electrode 190a by contact hole 185a, makes distance between the port reduce and overlapping area increases.

Pixel electrode 190a has the shape of essentially rectangular.Its angle can partly be cut away, and cuts side and have about 45 ° angle with respect to gate line 121.

Pixel electrode 190a has a plurality of central opening 91a and 92a, upper shed 93a, 94a and 95a and under shed 96a, 97a and 98a.Pixel electrode 190a is divided into a plurality of zonules by these openings 91a-98a.Upper shed 93a-95a and under shed 96a-98a are separately positioned on first zone and second zone of pixel electrode 190a, and central opening 91a and 92a are arranged between upper shed 93a-95a and the under shed 96a-98a.Opening 91a-98a has roughly inverted axis of symmetry with respect to the center ordinate of pixel electrode 190a, separates first zone and second zone of pixel electrode 190a.For example, storage electrode line 131 can be separated first zone and second zone of pixel electrode 190a, and opening 91a-98a can be each other a mirror image with respect to storage electrode line 131.Upper shed 93a-95a and under shed 96a-98a have about 45 ° angle with respect to gate line 121.Upper shed 93a-95a and under shed 96a-98a are perpendicular to one another.

Upper shed 93a-95a is parallel to each other and be parallel to the top of central opening 91a and 92a, and under shed 96a-98a is also parallel to each other, and is parallel to the bottom of central opening 91a and 92a.

Opening 95a extends to relative last vertical side and the following vertical side of pixel electrode 190a from the cross side of proximity data line 171b with 98a.Opening 94a extends to the relative left comer of the pixel electrode 190a that may not excise from the right side of the pixel electrode 190a of proximity data line 171b with 97a.Opening 93a and 96a extend to the left cross side of the pixel electrode 190a of proximity data line 171a from first zone and second regional right corner of pixel electrode 190a.

Central opening 92a has the longitudinal part that extends along the center horizontal line of pixel electrode 190a, corresponding to storage electrode line 131, and pair of angled portion, its longitudinal part from central opening 92a on vertical reverse direction extends to the left side of pixel electrode 190a, and is parallel to upper shed 93a-95a and under shed 96a-98a respectively.Central opening 91a has the inlet that extends along the center horizontal line of pixel electrode 190a equally, corresponding to storage electrode line 131, and be formed on the left side of the pixel electrode 190a of proximity data line 171a, and this inlet has the pair of angled side, and it is parallel to upper shed 93a-95a and under shed 96a-98a respectively.

Therefore, first zone of pixel electrode 190a is divided into five zonules by central opening 91a and 92a and upper shed 93a-95a, and second zone also is divided into five zonules by central opening 91a and 92a and under shed 96a-98a.Here, Qu Yu quantity or number of openings can change according to the type of the aspect ratio of the size of pixel PX, pixel electrode 190a, liquid crystal layer 3 or character or other design factor.

Pixel electrode 190a and adjacent gate lines 121 are overlapping, make its aperture opening ratio increase.

Guarded electrode 88 extends along data line 171a and gate line 121.It is arranged on the part cover data line 171a entirely on the data line 171a, and it is arranged on the width of the width of the part on the gate line 121 less than gate line 121, and is arranged within the boundary of gate line 121.Alternatively, the width of guarded electrode 88 can be adjusted to the width less than data line 171a, and its boundary line can be positioned at the outside on the border of gate line 121.Press V in order to apply common-battery to guarded electrode 88 Com, guarded electrode 88 can be connected to storage electrode line 131 or short some (not shown) by the contact hole (not shown) in diaphragm 180 and the gate insulator 140, and wherein, common-battery is pressed V ComBe transferred to common electrode panel 200 by short point from TFT panel 100.

Here, preferably, the distance between guarded electrode 88 and the pixel electrode 190 is designed to minimum so that aperture opening ratio reduce minimize.

In such layout,, guarded electrode 88 presses V if being applied in common-battery ComAnd be arranged on the data line 171a, then guarded electrode 88 shielding is between data line 171a and pixel electrode 190a and the 190b and the electric field that generates between data line 171a and common electrode 270, makes the voltage distortion that can reduce pixel electrode 190a and 190b and by the signal delay and the distortion of the data voltage of data line 171a transmission.

In addition, because pixel electrode 190a and 190b and guarded electrode 88 are separated from each other at a certain distance to prevent short circuit therebetween, then can reduce the stray capacitance between it.In addition, because the specific inductive capacity of liquid crystal layer 3 is higher than the specific inductive capacity of diaphragm 180, therefore under the situation that guarded electrode 88 is not set, the stray capacitance between data line 171a and the guarded electrode 88 is lower than the stray capacitance between data line 171a and the common electrode 270.

In addition, because pixel electrode 190a is made of identical layer with 190b and guarded electrode 88, distance therebetween can be held equably, makes that stray capacitance therebetween is even.

Contact auxiliary member 81 and 82a are connected to the end 129 of gate line 121 and the end 179a of data line 171a by contact hole 181 and 182a respectively.The end 179a of exposure that contact auxiliary member 81 and 82a have the end 129 of exposure of offset gate polar curve 121 and a data line 171a is to the adhesiveness of external device (ED) and protect the function of these parts.

When gate drivers shown in Figure 15 400 or data driver 500 were integrated in the TFT panel 100, gate line 121 or data line 171a extended directly to be connected to driver.In this case, contact auxiliary member 81 and 82a can be used to respectively gate line 121 and data line 171a are connected to driver 400 and 500.

On pixel electrode 190a, the alignment films 11 that is coated with contact auxiliary member 81 and 82a and diaphragm 180 and is used to arrange liquid crystal layer 3.Alignment films 11 can be the homeotropic alignment film.

Next, with reference to Figure 17 to 19 common electrode panel 200 is described.

Be used to prevent that shading piece 220 (being also referred to as black battle array) that light leaks is formed on by clear glass or the dielectric substrate 210 made such as other transparent insulation material etc.

Shading piece 220 comprises in the face of a plurality of peristomes of pixel electrode 190 and has the shape roughly the same with pixel electrode 190.Alternatively, shading piece 220 can be by constituting corresponding to the part of data line 171a with corresponding to the part of TFT Qa.Yet shading piece 220 can have different shape, leaks with near the light of resisting pixel electrode 190a and TFT Qa.

A plurality of color filters 230 are formed on the substrate 210.Color filter 230 is arranged in the most of zone that is centered on by shading piece 220, and is laterally extending along pixel electrode 190.

A kind of in the color in red, the green or blueness that color filter 230 for example can show, or do not have other color described here.

Coverlay 250 is formed on color filter 230 and the shading piece 220, is exposed and the surface of complanation is provided to prevent color filter 230.

Be formed on the coverlay 250 by the common electrode of making such as, but not limited to the transparent conductive material of ITO and IZO 270.

Shown in Figure 17 and 18, common electrode 270 comprises that a plurality of opening 71 is to 78a.

Opening 71a-78a in the pixel electrode 190a, and comprise central opening 71a and 72a, upper shed 73a-75a and under shed 76a-78a.Opening 71a-78a is arranged on corresponding in position between the adjacent apertures 91a-98a of pixel electrode 190a or on the common electrode 270 of the opening 94a of pixel electrode 190a and the position between 98a and the inclined side.In addition, among the opening 71a-78a each has the rake that a upper shed 93a-95a who is parallel to pixel electrode 190a or under shed 96a-98a extend at least, and adjacent parallel open 91a-98a and the distance between the 71a-78a and the distance between its rake and pixel electrode 190a are equal to each other.Opening 91a-98a on the pixel electrode 190a and the opening 71a-78a on the common electrode 270 have roughly inverted axis of symmetry with respect to the center ordinate of pixel electrode 190a.

Among opening 74a, 75a, 77a and the 78a each includes: rake extends to upside or the downside of pixel electrode 190a from the part corresponding to the common electrode 270 on the right side of pixel electrode 190a; And vertical or horizontal portion, becoming the obtuse angle to extend to the side of pixel electrode 190a from the end of rake along part with rake corresponding to the common electrode 270 of the side of pixel electrode 190a, and with overlapping corresponding to the common electrode 270 of the side of pixel electrode 190a.Among opening 73a and the 76a each includes: rake extends to part corresponding to the common electrode 270 in the left side of pixel electrode 190a from the part corresponding to the common electrode 270 on the right side of pixel electrode 190a; And a pair of transverse part, becoming the obtuse angle along extending with rake corresponding to the part of the common electrode 270 on the left side of pixel electrode 190a and right side end from rake, and with overlapping corresponding to the common electrode 270 on the left side of pixel electrode 190a and right side.Among central opening 71a and the 72a each includes: longitudinal part, extend along the part corresponding to the common electrode 270 of the center ordinate of pixel electrode 190a; Pair of angled portion extends to part corresponding to the common electrode 270 in the left side of pixel electrode 190a from longitudinal component; And a pair of transverse part, becoming the obtuse angle along extending with rake corresponding to the part of the common electrode 270 in the left side of pixel electrode 190a end from rake, and in overlapping corresponding to the common electrode 270 of the side of pixel electrode 190a.Because common electrode 270 may roughly cover the whole surface of common electrode panel 200, therefore the pattern of opening described here can repeat for each pixel region of TFT panel 100.

Having triangular shaped notch is formed in the rake of opening 72a, 73a, 74a, 76a and 77a.Alternatively, the shape of notch can be a rectangle, trapezoidal, semicircle, and can be raised or sunken shape.Because notch, can determine to be arranged in orientation corresponding to the liquid crystal molecule of the liquid crystal layer 3 on the border of opening 72a, 73a, 74a, 76a and 77a.

The quantity of opening 71a-78a can change according to design factor, and shading piece 220 can leak with near the light of resisting opening 71a-78a with opening 71a-78a is overlapping.

Because identical common-battery is pressed V ComBe applied to common electrode 270 and guarded electrode 88, therefore do not produce electric field betwixt.Therefore, the liquid crystal molecule that is arranged in the liquid crystal layer 3 between common electrode 270 and the guarded electrode 88 keeps initial homeotropic alignment state, and incides this regional light and can not transmit.

Among opening 91a-98a and the 71a-78a at least one can be with raised or sunken replacement, and, describe given shape and the layout of opening 91a-98a and 71a-78a for example, but in optional embodiment, can revise shape and the layout of opening 91a-98a and 71a-78a.

On common electrode 270 and coverlay 250, the alignment films 21 that coating is used to arrange liquid crystal layer 3.Alignment layer 21 can be the homeotropic alignment film.

Polarizer 12 and 22 is arranged on the outside surface of panel 100 and 200.Two polarizers 12 and 22 transmission axle are perpendicular to one another, and in the transmission axle (absorption axes) one is parallel to vertically.Under the situation of reflection type LCD device, one in two polarizers 12 and 22 can be omitted.

Liquid crystal layer 3 has negative anisotropy specific inductive capacity, and arranges the liquid crystal molecule of liquid crystal layer 3, so that its major axis is perpendicular to the surface of two panels 100 and 200 when electric field is applied to liquid crystal molecule.

When common-battery is pressed V ComWhen being applied to common electrode 270 and pixel electrode 190a respectively, on the direction on the surface that is approximately perpendicular to panel 100 and 200, produce electric field with data voltage.Electrode 190 and 270 opening 91a-98a and 71a-78a distortion electric field are to produce the horizontal component perpendicular to the side of opening 91a-98a and 71a-78a.

Therefore, electric field is directed on the direction that tilts with respect to the direction perpendicular to the surface of panel 100 and 200.

In response to electric field, the liquid crystal molecule in the liquid crystal layer 3 has the long axis direction of change with the trend perpendicular to direction of an electric field.At this moment, because near the side of opening 91a-98a and 71a-78a and pixel electrode 190a electric field has the predetermined angle of the long axis direction that is not parallel to liquid crystal molecule, so liquid crystal molecule rotate the feasible lip-deep displacement that is formed by the long axis direction of liquid crystal molecule and electric field and shortens on such direction.Therefore, the zone that the side of one group of opening 91a-98a and 71a-78a and pixel electrode 190a will be positioned at the liquid crystal layer 3 on the pixel electrode 190a is divided into a plurality of scopes, and wherein, liquid crystal molecule has different pitch angle, and making to increase the benchmark visual angle.

According to LCD device of the present invention,, can prevent that therefore light from leaking because data line 171a is arranged between a pair of sub-pixel Pxa and PXb that constitutes a pixel PX.In addition, because two data line 171a and 171b are separated from each other by sub-pixel Pxa and PXb, therefore can reduce the signal delay or the distortion of data voltage.

The different pieces of information voltage that is predetermined with respect to a received image signal is applied to a pair of sub-pixel 190a and 190b, and its size can decide according to size and the shape of pixel electrode 190a and 190b, and can determine its polarity as required.

The zone of sub-pixel 190a and 190b can differ from one another.

On the other hand, when two sub-pixels that are separated from each other be connected to two gate lines but when only being connected to a data line, must (for example, 60HZ) frequency of the twice of signal and data-signal (for example, 120HZ) be driven with the received image signal frequency.Therefore, reduced half, therefore can reduce to be used for the driving surplus and the charge rate of such configuration owing to drive the time of the TFT of one-row pixels.Yet, according to the structure of the present invention that comprises two data lines that are connected to each pixel, because signal and data-signal can (for example, frequency 60HZ) be driven, so can prevent to reduce to drive surplus and charge rate with the received image signal frequency to wait.

As mentioned above, according to the present invention, a pixel is divided into a pair of sub-pixel, and sub-pixel is connected to two different data lines.Therefore, the independent data voltage of expectation level can be applied to two sub-pixels in each pixel, makes it possible to improve visuality, increases aperture opening ratio and also improves transmissivity.In addition, differ from one another, therefore can improve the side-looking degree because the zone of sub-pixel can be designed as.In addition, because the LCD device can be driven with the frequency of the frequency that equals received image signal, therefore can prevent to reduce to drive surplus and charge rate.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (45)

1. liquid crystal indicator, it comprises:
Pixel comprises first and second sub-pixel, and wherein, described first sub-pixel comprises that first pixel electrode and second sub-pixel comprise second pixel electrode;
Gate line is connected to described first and second sub-pixel, is used for signal is transferred to described first and second sub-pixel;
First data line intersects with described gate line, and is connected to described first sub-pixel, is used for first data voltage is transferred to described first sub-pixel; And
Second data line intersects with described gate line, and is connected to described second sub-pixel, be used for second data voltage is transferred to described second sub-pixel,
Wherein, described first data voltage has different values with described second data voltage, and obtains from identical image information, and
Wherein, the homonymy setting of the contiguous described pixel of described first data line and described second data line, at least one in perhaps described first and second data line is between described first and second pixel electrode.
2. liquid crystal indicator according to claim 1, wherein
Described first pixel electrode that described first sub-pixel comprises first switchgear that is connected to described gate line and described first data line and is connected to described first switchgear;
Described second pixel electrode that described second sub-pixel comprises the second switch device that is connected to described gate line and described second data line and is connected to described second switch device.
3. liquid crystal indicator according to claim 2, wherein, at least one in described first and second pixel electrode has opening.
4. liquid crystal indicator according to claim 2, wherein, described first sub-pixel and second sub-pixel further comprise the common electrode in the face of described first and second pixel electrode.
5. liquid crystal indicator according to claim 4, wherein, described common electrode has opening or projection.
6. liquid crystal indicator according to claim 2 further comprises guarded electrode, at least a portion of described guarded electrode and described first and second data line overlapping and with described first and second data line electrical isolation.
7. liquid crystal indicator according to claim 2, wherein, the area of described first pixel electrode is different from the area of described second pixel electrode.
8. liquid crystal indicator according to claim 1, wherein, the lateral length of described pixel and the ratio of longitudinal length equal 1: 3.
9. liquid crystal indicator according to claim 8, wherein, described first sub-pixel and described second sub-pixel are transversely arranged, and the lateral length of described first sub-pixel is different from the lateral length of described second sub-pixel.
10. liquid crystal indicator according to claim 1 further comprises first and second color filter of facing described first and second pixel electrode respectively, and wherein, described first and second color filter has identical color.
11. liquid crystal indicator according to claim 1, wherein, described first and second data voltage has identical polarity.
12. liquid crystal indicator according to claim 2 further comprises the electric bridge line that is connected between described second data line and the described second switch device,
Wherein, described second data line is more farther from described pixel than described first data line.
13. liquid crystal indicator according to claim 12, wherein,
Described electric bridge line comprises identical metal level with described gate line, and
Described electric bridge line is connected to the part of described second data line and an end of described second switch device by comprising the conducting element of the metal level identical with described first and second pixel electrode.
14. liquid crystal indicator according to claim 12, wherein, described second data line comprises first and the second portion that is separated from each other, and the first end of the end of described first and second part of described second data line and described electric bridge line is overlapping.
15. liquid crystal indicator according to claim 14, wherein, the second end of described electric bridge line is overlapping by the source electrode of described second switch device.
16. liquid crystal indicator according to claim 2, wherein, described pixel is a rectangle, and described first and second sub-pixel is a non-rectangle.
17. liquid crystal indicator according to claim 16, wherein, described first sub-pixel has the shape in the shape that is nested in described second pixel electrode, and the gap separates described first pixel electrode and second pixel electrode.
18. liquid crystal indicator according to claim 2, further comprise the storage electrode line parallel with described gate line, wherein, described first pixel electrode is connected to described first switchgear by first contact hole, described first contact hole is positioned at the position of corresponding described storage electrode line, and described second pixel electrode is connected to described second switch device by second contact hole, and described second contact hole is between described storage electrode line and described gate line.
19. liquid crystal indicator according to claim 1, wherein, described liquid crystal indicator is by with the frequency drives identical with the received image signal frequency of described image information.
20. liquid crystal indicator according to claim 1 further comprises:
Signal controller is used to handle described image information and produces first picture signal and second picture signal; And
Data driver will be applied to described first and second data line respectively corresponding to described first and second data voltage of described first and second picture signal.
21. liquid crystal indicator according to claim 1 comprises that further a plurality of pixels and the data line between every pair of neighborhood pixels are right.
22. a liquid crystal indicator, it comprises:
Gate line extends along first direction;
First and second data line extends along second direction, and is separated from each other;
The first film transistor is connected to described gate line and described first data line;
Second thin film transistor (TFT) is connected to described gate line and described second data line;
And
Pixel electrode comprises first and second show electrode that is connected respectively to described first and second thin film transistor (TFT),
Wherein, the second direction length of described second show electrode is greater than the first direction length of described first show electrode, and described first show electrode is positioned at the described second direction length of described second show electrode,
Wherein, the homonymy setting of the contiguous described pixel electrode of described first data line and described second data line, at least one in perhaps described first and second data line is between described first and second show electrode.
23. liquid crystal indicator according to claim 22, wherein, described first show electrode has the shape in the shape that is nested in described second show electrode.
24. liquid crystal indicator according to claim 22, wherein, described first and second show electrode has the inclined side that faces with each other.
25. liquid crystal indicator according to claim 24, wherein, at least one in described first and second show electrode has opening.
26. liquid crystal indicator according to claim 24 further comprises the 3rd show electrode in the face of described first and second show electrode.
27. liquid crystal indicator according to claim 26, wherein, described the 3rd show electrode has opening or projection.
28. liquid crystal indicator according to claim 22, wherein, each in described first and second show electrode all has the shape of symmetry with respect to the straight line that extends along described first direction.
29. liquid crystal indicator according to claim 22, wherein, described first data line and described second data line are positioned at the opposite side of described second show electrode along its described second direction.
30. liquid crystal indicator according to claim 26, wherein, described first data line and described second data line are positioned at the homonymy of described second show electrode along its described second direction.
31. liquid crystal indicator according to claim 26, wherein, the area of described first show electrode is different from the area of described second show electrode.
32. a liquid crystal indicator, it comprises:
A plurality of pixels, each pixel includes first and second sub-pixel;
Many gate lines are connected to described first and second sub-pixel, with the transmission signal; And
Many data lines intersect with described gate line, and are connected to described first sub-pixel and second sub-pixel, with the transmission data voltage,
Wherein, the data voltage that is applied to described first and second sub-pixel in each pixel has different values and identical polarity, and obtains from single image information.
33. liquid crystal indicator according to claim 32, wherein, the described polarity that is applied to the described data voltage of described first and second sub-pixel is reversed with every pixel column.
34. liquid crystal indicator according to claim 32, wherein, the described polarity that is applied to the described data voltage of described first and second sub-pixel is reversed with every pixel column.
35. liquid crystal indicator according to claim 32, wherein, described many data lines comprise first and second data line that is connected respectively to described first and second sub-pixel.
36. liquid crystal indicator according to claim 35, wherein, described first and second data line bit of each pixel is in the opposite side of each pixel.
37. liquid crystal indicator according to claim 35, wherein, described first and second data line bit of each pixel is in the homonymy of each pixel.
38. liquid crystal indicator according to claim 35, wherein, one of described first and second data line is between described first and second sub-pixel of each pixel.
39. a liquid crystal indicator, it comprises:
A plurality of pixels, each pixel includes first and second sub-pixel;
Many gate lines are connected to described first and second sub-pixel, with the transmission signal; And
Many data lines intersect with described gate line, and are connected to described first sub-pixel and second sub-pixel, with the transmission data voltage,
Wherein, the data voltage that is applied to described first and second sub-pixel in each pixel has different values and opposite polarity, and obtains from single image information.
40. according to the described liquid crystal indicator of claim 39, wherein, the described polarity that is applied to the described data voltage of described first and second sub-pixel is reversed with every pixel column.
41. according to the described liquid crystal indicator of claim 39, wherein, the described polarity that is applied to the described data voltage of described first and second sub-pixel is reversed with every pixel column.
42. according to the described liquid crystal indicator of claim 39, wherein, described many data lines comprise first and second data line that is connected respectively to described first and second sub-pixel.
43. according to the described liquid crystal indicator of claim 42, wherein, described first and second data line bit of each pixel is in the opposite side of each pixel.
44. according to the described liquid crystal indicator of claim 42, wherein, described first and second data line bit of each pixel is in the homonymy of each pixel.
45. according to the described liquid crystal indicator of claim 42, wherein, one of described first and second data line is between described first and second sub-pixel of each pixel.
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